TY  - BOOK
AU  - Popham,W.James
AU  - Baker,Eva L.
TI  - Systematic instruction
SN  - 0138807086
U1  - 371.3 
PY  - 1970///]
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Teaching
N1  - Includes bibliogr. references
ER  -